8. LED Blink

How do you plan to solve it?

/*Paste your code here*/
#define LED_PIN   PORTB0   // Example: LED connected to PORTB0

void delay_ms(unsigned int ms); // Assume delay function available

void main(void) {
    // Configure LED pin as output
    DDRB |= (1 << LED_PIN);

    while (1) {
        // LED ON
        PORTB |= (1 << LED_PIN);
        delay_ms(400);

        // LED OFF
        PORTB &= ~(1 << LED_PIN);
        delay_ms(800);
    }
}

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Photo of Output
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